CVE-2022-40022

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2023-02-13. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Weaponized
9.8
EchelonGraph verdictPatch this weekExploitation is likely or a public exploit exists.
  • High exploitation likelihood — EPSS 92%
CISA-KEV: Not listedEPSS: 92%CVSS: 9.8Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

Microchip Technology (Microsemi) SyncServer S650 was discovered to contain a command injection vulnerability.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
96(Track)
EG Risk 96/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity98% × 45%
Exploitation92% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
99.8%
KEV
Not listed

Published

February 13, 2023

Last Modified

March 21, 2025

Advisory Details (2)

Auto-updated Jun 9, 2026
No patch confirmed yet.
generic

CVE-2022-40022 – Securifera

https://www.securifera.com/advisories/CVE-2022-40022/
generic

Packet Storm

http://packetstormsecurity.com/files/172907/Symmetricom-SyncServer-Unauthenticated-Remote-Command-Execution.html

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 4× in last 7d / 7× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-24 14:15 UTCEPSS rescore
  2. 2026-07-23 02:13 UTCEG score recompute
  3. 2026-07-22 23:01 UTCEG score recompute
  4. 2026-07-22 14:06 UTCEPSS rescore
  5. 2026-07-01 15:04 UTCEPSS rescore
  6. 2026-06-25 13:48 UTCEPSS rescore
  7. 2026-06-25 13:48 UTCEPSS rescore
  8. 2026-06-23 21:31 UTCEPSS rescore
  9. 2026-06-23 21:31 UTCEPSS rescore
  10. 2026-06-15 17:46 UTCEPSS rescore
  11. 2026-06-14 23:16 UTCEPSS rescore
  12. 2026-06-13 22:59 UTCEPSS rescore
  13. 2026-06-12 23:10 UTCEPSS rescore
  14. 2026-06-12 23:10 UTCEPSS rescore
  15. 2026-06-10 22:17 UTCEPSS rescore
  16. 2026-06-08 14:15 UTCEPSS rescore
  17. 2026-06-07 15:23 UTCEPSS rescore
  18. 2026-06-07 15:23 UTCEPSS rescore
  19. 2026-06-05 22:46 UTCEPSS rescore
  20. 2026-06-05 22:46 UTCEPSS rescore
  21. 2026-05-31 00:15 UTCEPSS rescore
  22. 2026-05-31 00:15 UTCEPSS rescore
  23. 2026-05-29 13:43 UTCEPSS rescore
  24. 2026-05-29 13:43 UTCEPSS rescore
  25. 2026-05-28 13:43 UTCEPSS rescore
Show 3 more
  1. 2026-05-28 13:43 UTCEPSS rescore
  2. 2026-05-25 06:57 UTCEG score recompute
  3. 2026-05-25 06:57 UTCGHSA enrichment

Publicly available exploits

(2 references)

Working exploit code is in the public domain (1 Metasploit module). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Metasploitexploit/linux/http/symmetricom_syncserver_rce✓ verified
    First seen Aug 31, 2022

    Symmetricom SyncServer Unauthenticated Remote Command Execution

    Open source ↗
  • Nucleihttp/cves/2022/CVE-2022-40022.yaml
    First seen Jan 1, 2022

    Symmetricom SyncServer Unauthenticated - Remote Command Execution

    Open source ↗

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2022-40022?
CVE-2022-40022 is a critical vulnerability published on February 13, 2023. Microchip Technology (Microsemi) SyncServer S650 was discovered to contain a command injection vulnerability.
When was CVE-2022-40022 disclosed?
CVE-2022-40022 was first published in the National Vulnerability Database on February 13, 2023, with the most recent update on March 21, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2022-40022 actively exploited?
CVE-2022-40022 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 99.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2022-40022?
CVE-2022-40022 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2022-40022?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-40022, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2022-40022

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